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This experiment was conducted to clarify the effect of pyroligneous liquor on endogenous substances that were GA (gibberelic acid)-like substances, starch, and protein of Neofinetia falcata cultured in vitro. When seedlings of Neofinetia falcata were treated with several concentrations (0, 0.5, 1.0, 2.0, 3.0 ml/L) of pyroligneous liquor, the growth of seedlings was enhanced in 1.0 ml/L pyroligneous liquor added media. The activity of GA-like substances was lower in the leaf, but higher in the and root than that of the control. The content of starch in 1.0 ml/L pyroligneous liquor was lower in the leaf, but higher in the root than that of the control. And the content of protein in 1.0 ml/L pyroligneous liquor was also lower in the leaf, but higher in the root than that of the control.
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